Physics
A man stands on the pan of a balance holding a fish in his right hand and bucket of water in his left hand. If he transfers the fish into the bucket, the total weight on the pan

Decreases
First increases and then decreases
Remains the same
Increases

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Physics
What is the direction of torque?

Same as the direction of applied force
Parallel to the radius
Opposite to the direction of applied force
Perpendicular to the direction of applied force

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Physics
The wall of a dam is broader at the base

To withstand pressure that increases with depth
Because streamlining is required
To withstand pressure that increases in a horizontal plane
To withstand pressure that is increased with atmospheric pressure

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